AC-Boolean

This package provides various functions and classes for dealing with things which are like Boolean values. It also defines a few useful instances. The main benefit is the ability to use the usual &&, etc. operators without having to invent new operator names for every kind of Bool-like thing. Changes: Increase efficiency of Boolean instance for Bool. Shorten source code. Remove function instance. (Control.Monad.Instances provides an equivilent Monad instance.)